Force f 60 n i hat -90 n k hat acts on a pebble with


Force F = (6.0 N) i hat + (-9.0 N) k hat acts on a pebble with position vector r = (0.90 m) j hat + (-0.6 m) k hat, relative to the origin.

(a) What is the resulting torque acting on the pebble about the origin?

(b) What is the resulting torque acting on the pebble about a point with coordinates (-2.0 m, 6.0 m, 3.0 m)?

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Physics: Force f 60 n i hat -90 n k hat acts on a pebble with
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